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Subject[PATCH 43/49] Staging: poch: Fix user space protocol syncing
Date
From: vijaykumar@bravegnu.org <vijaykumar@bravegnu.org>

Always set the user space offset from kernel space, to indicate group
transmitted/received.

Signed-off-by: Vijay Kumar <vijaykumar@bravegnu.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
drivers/staging/poch/poch.c | 14 ++------------
1 files changed, 2 insertions(+), 12 deletions(-)

diff --git a/drivers/staging/poch/poch.c b/drivers/staging/poch/poch.c
index 0a3eca1..3ecbd7c 100644
--- a/drivers/staging/poch/poch.c
+++ b/drivers/staging/poch/poch.c
@@ -948,14 +948,7 @@ static int poch_channel_available(struct channel_info *channel)
spin_lock_irq(&channel->group_offsets_lock);

for (i = 0; i < channel->group_count; i++) {
- if (channel->dir == CHANNEL_DIR_RX
- && channel->header->group_offsets[i] == -1) {
- spin_unlock_irq(&channel->group_offsets_lock);
- return 1;
- }
-
- if (channel->dir == CHANNEL_DIR_TX
- && channel->header->group_offsets[i] != -1) {
+ if (channel->header->group_offsets[i] != -1) {
spin_unlock_irq(&channel->group_offsets_lock);
return 1;
}
@@ -1103,10 +1096,7 @@ static void poch_irq_dma(struct channel_info *channel)

for (i = 0; i < groups_done; i++) {
j = (prev_transfer + i) % channel->group_count;
- if (channel->dir == CHANNEL_DIR_RX)
- group_offsets[j] = -1;
- else
- group_offsets[j] = groups[j].user_offset;
+ group_offsets[j] = groups[j].user_offset;
}

spin_unlock(&channel->group_offsets_lock);
--
1.6.0.2


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